TietoEnator has received an additional irrevocable undertaking for the cash offer of AttentiV

TietoEnator Corporation Stock Exchange Release 5 April 2005 6.00 pm EET

Further to the announcement released earlier today by TietoEnator Corporation regarding its intention to make a cash offer for AttentiV Systems Group plc, TietoEnator announces that it has since received an irrevocable undertaking from HSBC Asset Management (Europe) Limited to accept the Offer in respect of 2,500,000 AttentiV shares held by HSBC, representing approximately 4.1%. of AttentiV's existing issued share capital. The irrevocable undertaking provided by HSBC will cease to be binding only in the event of an announcement of a third party offer representing at least a 10% premium to the value of the Offer.

TietoEnator has now received irrevocable undertakings from AttentiV shareholders to accept the Offer in respect of, in aggregate, 15,827,292 AttentiV shares, representing approximately 26.1%.of AttentiV's existing issued share capital.

TietoEnator has received irrevocable undertakings to accept or indications of an intention to accept the Offer in respect of a total of 30,172,421 AttentiV shares, representing approximately 49.8%. of AttentiV's existing issued share capital.

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